<Window x:Class="AppDemo.RibbonWindow1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
	xmlns:shared="http://schemas.actiprosoftware.com/winfx/xaml/shared" 
	xmlns:ribbon="http://schemas.actiprosoftware.com/winfx/xaml/ribbon" 
    Width="620" Height="450">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <TextBox x:Name="aaaa" HorizontalAlignment="Left" VerticalAlignment="Top" Width="92"></TextBox>
        <ListBox x:Name="aaa" Height="400" Width="180" ScrollViewer.ScrollChanged="aaa_ScrollChanged"></ListBox>
    </Grid>
</Window>
